print(123)
local function iter(m,n)
      n = n+1
  if n<=m then
    return n
  end
end

function fromto(n,m)
  return iter,m,n-1
end
--[[
for i = 2,5 do
  print(i)
end
--]]
---[[
for i in fromto(2,5) do
  print(i)
end
--]]
for i in fromto(3,10) do
  print(i)
end